[llvm] [Github] Allow CI to run different Python version tests at once (PR #102455)

[Jannick Kremer via llvm-commits]

https://github.com/DeinAlptraum created https://github.com/llvm/llvm-project/pull/102455

Previously, #77219 added a `python_version` parameter for the Github Actions CI Ninja-based build tests. This is necessary to run component tests on different Python versions, as is currently done by the only user of this parameter, the [Libclang Python bindings test](https://github.com/llvm/llvm-project/blob/main/.github/workflows/libclang-python-tests.yml).
The parameter was however not added to the concurrency group of the workflow, meaning that starting the workflow with two different Python versions immediately cancels one of them, as pointed out by https://github.com/llvm/llvm-project/pull/77219#issuecomment-1937105822. This change fixes that problem by making the Python version part of the concurrency group key, and removes the superfluous concurrency group from the calling workflow.

>From fcf0fa9885796dc3007da036bf5882e4b68e967d Mon Sep 17 00:00:00 2001
From: Jannick Kremer <jannick.kremer at mailbox.org>
Date: Mon, 5 Aug 2024 10:20:03 +0100
Subject: [PATCH] [Github] Allow CI to run different Python version tests at
 once

---
 .github/workflows/libclang-python-tests.yml | 6 ------
 .github/workflows/llvm-project-tests.yml    | 2 +-
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/.github/workflows/libclang-python-tests.yml b/.github/workflows/libclang-python-tests.yml
index 43ded0af3ac21..801a701724789 100644
--- a/.github/workflows/libclang-python-tests.yml
+++ b/.github/workflows/libclang-python-tests.yml
@@ -22,12 +22,6 @@ on:
       - '.github/workflows/libclang-python-tests.yml'
       - '.github/workflows/llvm-project-tests.yml'
 
-concurrency:
-  # Skip intermediate builds: always.
-  # Cancel intermediate builds: only if it is a pull request build.
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
-
 jobs:
   check-clang-python:
     # Build libclang and then run the libclang Python binding's unit tests.
diff --git a/.github/workflows/llvm-project-tests.yml b/.github/workflows/llvm-project-tests.yml
index 17a54be16badc..95a3890c0d2dc 100644
--- a/.github/workflows/llvm-project-tests.yml
+++ b/.github/workflows/llvm-project-tests.yml
@@ -51,7 +51,7 @@ concurrency:
   # Cancel intermediate builds: only if it is a pull request build.
   # If the group name here is the same as the group name in the workflow that includes
   # this one, then the action will try to wait on itself and get stuck.
-  group: llvm-project-${{ github.workflow }}-${{ inputs.projects }}${{ github.ref }}
+  group: llvm-project-${{ github.workflow }}-${{ inputs.projects }}-${{ inputs.python_version }}${{ github.ref }}
   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
 
 jobs: